<%@ page pageEncoding="UTF-8" import="java.util.*" language="java" %>
<%
  String path=request.getContextPath();
  String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
  <base href="<%=basePath%>">
    <title>物理与电子网站</title>
  <meta http-equiv="pragma" content="no-cache">
  <meta http-equiv="content-type" content="no-cache">
  <meta http-equiv="expires" content="0">
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="This is my page">
</head>
<body>
<%@include file="top.html"%>>
<%
  String s=request.getParameter("choize");
  if (s==null)
    s="1";
  int choise=Integer.parseInt(s);
  switch (choise){
    case 1:%>
<%@include file="welcome.html"%>
<%break;
  case 2:%>
<%@include file="feature.html"%>
<%break;
  case 3:%>
<%@include file="contact.html"%>
 <%break;
  }
%>

</body>
</html>
